diff --git a/README.md b/README.md
index 2ccc5d3fc0..a9516af5c3 100644
--- a/README.md
+++ b/README.md
@@ -212,6 +212,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Cleanup Extension | Post-implementation quality gate that reviews changes, fixes small issues (scout rule), creates tasks for medium issues, and generates analysis for large issues | `code` | Read+Write | [spec-kit-cleanup](https://github.com/dsrednicki/spec-kit-cleanup) |
 | Conduct Extension | Orchestrates spec-kit phases via sub-agent delegation to reduce context pollution. | `process` | Read+Write | [spec-kit-conduct-ext](https://github.com/twbrandon7/spec-kit-conduct-ext) |
 | Confluence Extension | Create a doc in Confluence summarizing the specifications and planning files | `integration` | Read+Write | [spec-kit-confluence](https://github.com/aaronrsun/spec-kit-confluence) |
+| Cost Tracker | Track real LLM dollar cost across SDD workflows — per-feature budgets, per-integration comparison, and finance-ready exports | `visibility` | Read+Write | [spec-kit-cost](https://github.com/Quratulain-bilal/spec-kit-cost) |
 | DocGuard — CDD Enforcement | Canonical-Driven Development enforcement. Validates, scores, and traces project documentation with automated checks, AI-driven workflows, and spec-kit hooks. Zero NPM runtime dependencies. | `docs` | Read+Write | [spec-kit-docguard](https://github.com/raccioly/docguard) |
 | Extensify | Create and validate extensions and extension catalogs | `process` | Read+Write | [extensify](https://github.com/mnriem/spec-kit-extensions/tree/main/extensify) |
 | Fix Findings | Automated analyze-fix-reanalyze loop that resolves spec findings until clean | `code` | Read+Write | [spec-kit-fix-findings](https://github.com/Quratulain-bilal/spec-kit-fix-findings) |
diff --git a/extensions/catalog.community.json b/extensions/catalog.community.json
index e8fd66cc50..81d4e1f18e 100644
--- a/extensions/catalog.community.json
+++ b/extensions/catalog.community.json
@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-05-05T07:26:00Z",
+  "updated_at": "2026-05-06T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "aide": {
@@ -580,6 +580,38 @@
       "created_at": "2026-03-29T00:00:00Z",
       "updated_at": "2026-03-29T00:00:00Z"
     },
+    "cost": {
+      "name": "Cost Tracker",
+      "id": "cost",
+      "description": "Track real LLM dollar cost across SDD workflows — per-feature budgets, per-integration comparison, and finance-ready exports.",
+      "author": "Quratulain-bilal",
+      "version": "1.0.0",
+      "download_url": "https://github.com/Quratulain-bilal/spec-kit-cost/archive/refs/tags/v1.0.0.zip",
+      "repository": "https://github.com/Quratulain-bilal/spec-kit-cost",
+      "homepage": "https://github.com/Quratulain-bilal/spec-kit-cost",
+      "documentation": "https://github.com/Quratulain-bilal/spec-kit-cost/blob/main/README.md",
+      "changelog": "https://github.com/Quratulain-bilal/spec-kit-cost/blob/main/CHANGELOG.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": ">=0.8.0"
+      },
+      "provides": {
+        "commands": 5,
+        "hooks": 0
+      },
+      "tags": [
+        "cost",
+        "budget",
+        "tokens",
+        "visibility",
+        "finance"
+      ],
+      "verified": false,
+      "downloads": 0,
+      "stars": 0,
+      "created_at": "2026-05-03T00:00:00Z",
+      "updated_at": "2026-05-05T00:00:00Z"
+    },
     "diagram": {
       "name": "Spec Diagram",
       "id": "diagram",
@@ -2905,7 +2937,7 @@
       "downloads": 0,
       "stars": 0,
       "created_at": "2026-04-13T00:00:00Z",
-      "updated_at": "2026-04-13T00:00:00Z"      
+      "updated_at": "2026-04-13T00:00:00Z"
     }
   }
 }